Here's a drop target issue my Mata Hari machine. The left bank of 4 drop targets will not always reset correctly. I'd say about 50% of the time, at least 1, 2 or 3 of the 4 targets will not reset and remain in the down position. (I've haven't seen where all 4 get stuck, at least not yet). The other 50% of the time it works correctly. This can occur during the game or when starting a new game. The right side drop targets work correctly 100% of the time. The switches look ok to me. I did try adjusting them anyway but it didn't seem to help. Could this simply be the springs are worn out? They look ok but maybe they need more tension? The targets don't seem to be binding anywhere that I can see.

This is my first solid state machine. I would greatly appreciate any help. Thank you.

Fantastic! Thank you very much dasvis for that info. I'll get right on that.

I guess I got lucky here. I didn't have to replace anything. There are 2 allen screws on bushings on each end of the lift bar. I was able to adjust the lift bar by loosening the bushings, then turning them slightly. That seemed to create more tension on the targets. Works every time now.